Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Donald N. Alstad"'
Publikováno v:
Canadian Journal of Forest Research. 27:1794-1804
A field manipulation of resources that may control the balance of growth versus differentiation (secondary metabolism and storage) in ponderosa pine (Pinus ponderosa Dougl. ex P. & C. Laws.) was performed by supplementing 10 mature trees with water,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4de77e0effbbbed930a0124810b3c1f0
https://doi.org/10.1139/x97-147
https://doi.org/10.1139/x97-147
Autor:
Donald N. Alstad, George F. Edmunds
Publikováno v:
Environmental Pollution Series A, Ecological and Biological. 37:217-227
Basal needle necrosis (BNN) of pines is characterized by necrotic lesions on the surface of needles within the needle sheath, with or without hypertrophy or needle splitting and resin exudation. Interpretations vary on the possible association of BNN
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6eeafda29e27eff6d86f8c24317030db
https://doi.org/10.1016/0143-1471(85)90042-x
https://doi.org/10.1016/0143-1471(85)90042-x
Autor:
Donald N. Alstad, George F. Edmunds
Publikováno v:
Science. 199:941-945
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52a21074d55651fc4b88a63043f9b2a1
https://doi.org/10.1126/science.199.4332.941
https://doi.org/10.1126/science.199.4332.941
Autor:
Donald N. Alstad, George F. EdmundsJr.
Publikováno v:
Proceedings in Life Sciences ISBN: 9781461259435
Plants use various means to deter or dissuade attack by phytophagous insects. Herbivore counteradaptation to these defenses is probably an important factor in insect host specificity and the coevolution of plant and herbivore phylogenies. This coevol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c21321849aa767e9d2623a1a7a6c9d6
https://doi.org/10.1007/978-1-4612-5941-1_3
https://doi.org/10.1007/978-1-4612-5941-1_3
Autor:
Donald N. Alstad
Publikováno v:
Science. 216:533-534
Patterns of body size and net construction suggest that current speed and food-particle concentration (not size) influence the distribution of suspension-feeding caddisflies on a downstream gradient. Large ancestral taxa with high filtration rates oc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a521891689807feb62c1996d1277ce1d
https://doi.org/10.1126/science.216.4545.533
https://doi.org/10.1126/science.216.4545.533